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https://issues.apache.org/jira/browse/DERBY-3678?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12604313#action_12604313
]
Knut Anders Hatlen commented on DERBY-3678:
-------------------------------------------
Thanks again, Dag!
I guess you're right that the problem is limited to concurrent compress of
SYS.SYSSCHEMAS and is not very likely, nor very harmful given that this code is
only used for diagnostics. Great that you added a comment about this in the
code! I have no more comments to the latest patch.
> StackOverflowException in deadlock trace
> ----------------------------------------
>
> Key: DERBY-3678
> URL: https://issues.apache.org/jira/browse/DERBY-3678
> Project: Derby
> Issue Type: Bug
> Affects Versions: 10.3.2.1
> Environment: (this is actually in version 10.3.2.2)
> MacOS 10, JDK 1.6
> Reporter: geoff hendrey
> Assignee: Dag H. Wanvik
> Fix For: 10.5.0.0
>
> Attachments: derby-3678-1.diff, derby-3678-1.stat, derby-3678-2.diff,
> derby-3678-2.stat, derby-3678-3.diff, derby-3678-3.stat
>
>
> I am getting a deadlock in SYSTABLE. When I turn on
> Dderby.locks.deadlockTrace=true, I get a StackOverflowException
> Derby version The Apache Software Foundation - Apache Derby - 10.3.2.2
> - (618335): instance 80220011-0119-f93f-b912-00000000bced
> on database directory /db/domains/geoff
> Database Class Loader started - derby.database.classpath=''
> 2008-05-17 23:44:36.380
> GMT Thread[btpool0-2,5,main] (XID = 7556), (SESSIONID = 4), (DATABASE =
> domains/geoff), (DRDAID = null), Cleanup action starting
> java.lang.StackOverflowError
> at
> org.apache.derby.impl.sql.execute.GenericExecutionFactory.getValueRow(Unknown
> Source)
> at
> org.apache.derby.impl.sql.catalog.SYSCONGLOMERATESRowFactory.makeRow(Unknown
> Source)
> at
> org.apache.derby.impl.sql.catalog.SYSCONGLOMERATESRowFactory.makeEmptyRow(Unknown
> Source)
> at
> org.apache.derby.impl.sql.catalog.DataDictionaryImpl.hashAllConglomerateDescriptorsByNumber(Unknown
> Source)
> at org.apache.derby.impl.services.locks.TableNameInfo.<init>(Unknown
> Source)
> at
> org.apache.derby.impl.services.locks.Timeout.buildLockTableString(Unknown
> Source)
> at
> org.apache.derby.impl.services.locks.Timeout.createException(Unknown Source)
> at
> org.apache.derby.impl.services.locks.Timeout.buildException(Unknown Source)
> at
> org.apache.derby.impl.services.locks.ConcurrentLockSet.lockObject(Unknown
> Source)
> at
> org.apache.derby.impl.services.locks.AbstractPool.lockObject(Unknown Source)
> at
> org.apache.derby.impl.services.locks.ConcurrentPool.lockObject(Unknown Source)
> at
> org.apache.derby.impl.store.raw.xact.RowLocking3.lockRecordForRead(Unknown
> Source)
> at
> org.apache.derby.impl.store.access.heap.HeapController.lockRow(Unknown Source)
> at
> org.apache.derby.impl.store.access.heap.HeapController.lockRow(Unknown Source)
> at
> org.apache.derby.impl.store.access.btree.index.B2IRowLocking3.lockRowOnPage(Unknown
> Source)
> at
> org.apache.derby.impl.store.access.btree.index.B2IRowLocking3._lockScanRow(Unknown
> Source)
> at
> org.apache.derby.impl.store.access.btree.index.B2IRowLockingRR.lockScanRow(Unknown
> Source)
> at
> org.apache.derby.impl.store.access.btree.BTreeForwardScan.fetchRows(Unknown
> Source)
> at org.apache.derby.impl.store.access.btree.BTreeScan.next(Unknown
> Source)
> at
> org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getDescriptorViaIndex(Unknown
> Source)
> at
> org.apache.derby.impl.sql.catalog.DataDictionaryImpl.locateSchemaRow(Unknown
> Source)
> at
> org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getSchemaDescriptor(Unknown
> Source)
> at
> org.apache.derby.impl.sql.catalog.SYSTABLESRowFactory.buildDescriptor(Unknown
> Source)
> at
> org.apache.derby.impl.sql.catalog.DataDictionaryImpl.hashAllTableDescriptorsByTableId(Unknown
> Source)
> at org.apache.derby.impl.services.locks.TableNameInfo.<init>(Unknown
> Source)
> at
> org.apache.derby.impl.services.locks.Timeout.buildLockTableString(Unknown
> Source)
> at
> org.apache.derby.impl.services.locks.Timeout.createException(Unknown Source)
> at
> org.apache.derby.impl.services.locks.Timeout.buildException(Unknown Source)
> at
> org.apache.derby.impl.services.locks.ConcurrentLockSet.lockObject(Unknown
> Source)
> at
> org.apache.derby.impl.services.locks.AbstractPool.lockObject(Unknown Source)
> at
> org.apache.derby.impl.services.locks.ConcurrentPool.lockObject(Unknown Source)
> at
> org.apache.derby.impl.store.raw.xact.RowLocking3.lockRecordForRead(Unknown
> Source)
> at
> org.apache.derby.impl.store.access.heap.HeapController.lockRow(Unknown Source)
> at
> org.apache.derby.impl.store.access.heap.HeapController.lockRow(Unknown Source)
> at
> org.apache.derby.impl.store.access.btree.index.B2IRowLocking3.lockRowOnPage(Unknown
> Source)
> at
> org.apache.derby.impl.store.access.btree.index.B2IRowLocking3._lockScanRow(Unknown
> Source)
> at
> org.apache.derby.impl.store.access.btree.index.B2IRowLockingRR.lockScanRow(Unknown
> Source)
> at
> org.apache.derby.impl.store.access.btree.BTreeForwardScan.fetchRows(Unknown
> Source)
> at org.apache.derby.impl.store.access.btree.BTreeScan.next(Unknown
> Source)
> at
> org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getDescriptorViaIndex(Unknown
> Source)
> at
> org.apache.derby.impl.sql.catalog.DataDictionaryImpl.locateSchemaRow(Unknown
> Source)
> at
> org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getSchemaDescriptor(Unknown
> Source)
> at
> org.apache.derby.impl.sql.catalog.SYSTABLESRowFactory.buildDescriptor(Unknown
> Source)
> at
> org.apache.derby.impl.sql.catalog.DataDictionaryImpl.hashAllTableDescriptorsByTableId(Unknown
> Source)
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